A090614 Numbers n such that 14n+3 is prime.

0, 1, 2, 4, 5, 7, 11, 14, 16, 17, 19, 20, 22, 25, 26, 29, 34, 37, 40, 41, 44, 46, 47, 55, 56, 59, 61, 67, 70, 71, 74, 79, 80, 82, 85, 89, 91, 92, 94, 97, 104, 106, 110, 112, 115, 116, 119, 121, 125, 130, 134, 136, 139, 149, 152, 160, 167, 170, 172, 176, 182, 184, 185

Offset: 1

Author

Ray Chandler, Dec 23 2003

Keywords

• nonn

Links

• Harvey P. Dale, Table of n, a(n) for n = 1..1000

Crossrefs

A045437 gives primes, A090613 gives prime index.

Cf. A024903, A033868, A089033.

Programs

Mathematica

Select[Range[0,200],PrimeQ[14#+3]&] (* Harvey P. Dale, Jun 09 2015 *)

PARI

is(n)=isprime(14*n+3) \\ Charles R Greathouse IV, Feb 17 2017

Formula

a(n) = (A024903(n+1)-1)/2 = (A033868(n)-2)/2 = A089033(n)/2.